William s



(No Model.)

W. S.- SHARPNEGK.

ANTI FRICTION JOURNAL BOX.

No. 373,756. Patented Nov 22, 1887.

) INVENTOR BY M?!) ATTORNEY.

UNITED STATES PATENT WVILLIAH S. SHARPNECK, OF DENVER, COLORADO.

ANTl-FRlCTION JOURNAL-BOX.

SPECIFICATION forming part of Letters Patent No. 373,756, dated November22, 1887.

Application filed June 21, 1887. Serial No. 242,024. (No model.)

To all whom it may concern.-

Beit known that I, WILLIAM S. SHARPNECK, a citizen of the United States,residing at Denver,in the county ofArapahoe and State of Colo rado, haveinvented certain new and useful ImprovementsinAnti-FrictionJournal-Boxes, of which the following is a specification, referencebeing had therein to the accompanying drawings, in which- Figure 1 is aplan of my improvement with the top of the box removed. Fig. 2is atransverse section through the line as a: in Fig. 1. Figs. 3 and i aredetails of the pin and separating-washer, which will be more fullyhereinafter described.

This improvement relates more particularly to that class ofanti-friction journalboxes wherein a series of rollers revolve aroundthe shaft and are held in a regulated position as respects each otheraround said shaft; and the invention consistsin the peculiarconstruction, combination, and arrangement of parts, hereinafter moreparticularly described, and then definitely pointed out in the claims.

Relerring,now,to the details of construction, A represents the shaft orjournal, provided with a projecting rim, a, near the center of the box,around which are arranged several hollow rollers, B, preferably six; butthis may be varied by changing the relative sizes of the rollers andjournals. Each of these rollers is provided with an annular groove, 1),fitting the rim a in the journal, and also fitting an annular rib, 0, inthe box 0. At the opposite ends of the series of rings areseparating-washers D, (see Fig. 4,) which washers are connected togetherby a series of pins, E, (see Fig. 3,) each of which passes through oneof the rollers and through a separate hardened-steel washer, F, and allof them enter and pass through the separating-washers D and are securedby nuts G, so as to form a kind of cage surrounding thejournal A, and onthe bars of which the rollers B turn. It will be seen on examining Fig.2 that the pins E are considerably smaller than the bore of the rollersB, which leaves room for a set of smaller rollers, H, which nicely fitthe space between the pins and the inner circumference of the largerollers, the object of which is to keep said large rollers B in theirproper position around the pins E and to prevent friction between therollers Band the pins E. By this construction ajournal-box is formed inwhich all the bearing-rollers are kept in their proper positions, sothat they cannot rub against each otheiyand said bearing-rollers arerelieved from friction against the pins which keep them in place,whereby they revolve with comparativelylit' tle friction and will run along time without oil and without cutting.

\Vhat I claim as new is 1. The combination, in ajournal-hox, ofa seriesof hollow rollers, B, the separating-wash ers D, the pins E, passingthrough the rollers B and into the washers D, and a series of smallerrollers, H, between the rollers B and the pins on which they revolve,substantially as described.

2. The combination, in a journal-boX, of a journal, A, having a rim,(11,2. series of hollow rollers, B, having grooves to fit the rim,separating-washers D at each end, aseries of pins, E, passing throughsaid rollers 13 and having their ends secured in the washers, and aseries of small rollers inclosed in each large roller, substantially asdescribed;

In testimony whereof I affix my signature,in presence of two witnesses,this 81st day of May, 1887.

*VVILLIAM S. SHARPNEGK.

Witnesses:

J. H. SMITH, G. G. BABCOOK.

